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hi, i would like to know the right way of finding the rise/fall times of pulse signals in PSpice. is using Probe the only way of finding it manually? it's very tedious since i've to generate many pulse signals for different circuits, and, the 10% and 90% values will not be accurate if i plot it...
pll on fpga
you're right. but what i want to design is a dedicated PLL chip. and i wonder why there are still many discussions on implementation PLL on FPGA although the fact they know that there PLL is already embedded inside FPGA chips.
there might some advantage if we design a dedicated...
adpll fpga
i've gone through some books briefly and found that there is a classical digital PLL design, which is not 100% digital, and the that type of PLL can be made possible by combining both analog and digital signals (mixed-signals).
ADPLL also is one good technique, but my plan is on...
fpga rf wireless design
is it possible to configure an FPGA chip so that it will work as a wireless transceiver?
i know FPGA is a digital chip, just wander if it is possible.
or can we support it with some external analog circuits to make it possible.
i found that in many ICs there are more than one ground?
why? is it not sufficient with just one ground pin? or they (the IC designers)
just love to fill up the pins requirement (for any packaging)?
what improvement can we get by spreading many pins for grounding purpose?
circuit stages
this is rather basic. but i would like to know why we need higher impedance on later circuit stages (e.g cascaded amplifier). gladly appreciate any clear explanation on this.
Re: Mosfet basic
read sedra/smith's microelectronics circuits & m.h rashid's microelectronics circuits: analysis and design.
sedra/smith's is good on its explanation. and rashid's book have plenty of circuit simulations using pspice and practical aspects.
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